{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{2}{c}}
\hline\hline
                    &\multicolumn{1}{c}{PID: Republican}&\multicolumn{1}{c}{Trump over Biden}\\
                    &\multicolumn{1}{c}{(1)}         &\multicolumn{1}{c}{(2)}         \\
                    &        none         &           D         \\
                    &        none         &        none         \\
\hline
Non-Employer SBO    &      -0.096\sym{***}&      -0.071\sym{**} \\
                    &     (0.018)         &     (0.024)         \\
[1em]
Employer SBO        &      -0.054         &      -0.082\sym{*}  \\
                    &     (0.028)         &     (0.035)         \\
[1em]
Regulation Index    &       0.892\sym{***}&       1.177\sym{***}\\
                    &     (0.035)         &     (0.040)         \\
[1em]
Constant            &       0.019         &      -0.138\sym{***}\\
                    &     (0.021)         &     (0.024)         \\
\hline
Controls            &                     &                     \\
Observations        &        2283         &        2279         \\
R-squared           &        0.31         &        0.30         \\
\hline\hline
\multicolumn{3}{l}{\footnotesize \sym{*} \(p<0.05\), \sym{**} \(p<0.01\), \sym{***} \(p<0.001\)}\\
\end{tabular}
}
